Mass concrete is easy to crack in construction.
大体积混凝土施工中容易产生裂缝。
The method about thermal field of mass concrete is introduced.
对大体积混凝土温度场的预测方法进行了分析。
Thermal stress and temperature control is crucial in mass concrete structure.
在大体积混凝土结构中，温度应力和温度控制具有重要的意义。
Temperature crack control of mass concrete is an important subject in construction.
大体积混凝土的温度裂缝控制是施工中的一项重要课题。
It is a common practice to set embedded joint in the construction of mass concrete structure.
在钢筋混凝土结构中设置后浇带是目前常采用的一种方法。
Thus, crack control must be considered while a large mass concrete structure is in construction.
因此大体积混凝土在施工中必须考虑裂缝控制。
A big technical problem for mass concrete structures during pouring is how to control crack expansion.
大体积混凝土在浇筑中的一个重要技术课题是控制裂缝扩展。
With the increasing of high-rise buildings and large equipment, the application of mass concrete is increasing too.
随着高层建筑与大型设备基础日益增多，大体积混凝土的应用也日益广泛。
During the mass concrete construction in bridge structure, the cement hydration heat is easy to cause surface cracking.
大体积混凝土在桥梁施工过程中，由于水泥水化热容易引起表面裂缝。
One of the most important technology of the construction of the mass concrete base is to control the expand of cracking.
大体积混凝土基础施工的一个重要的技术课题是控制裂缝扩展。
The lithium salt slag is used in various specially mixed concrete as well as in conventional concrete and mass concrete .
除可以在一般混凝土和大体积混凝土中使用锂盐渣外，还可用于配制各种特种混凝土。
In order to prevent the crack of concrete, many mass concrete takes dry shrinkage as an important index of crack resistance.
为了防止混凝土发生裂缝，许多大体积混凝土在设计中提出抗裂要求，干缩是混凝土抗裂能力的重要指标。
The criterion can provide us reliable of valid experimental basis on crack resistance design and stage curing of mass concrete.
为大体积混凝土的抗裂设计及阶段性养护提供可靠的实验依据。
Releasing steam heat from the mass concrete structures while solidifying leads to produce the temperature change and contraction.
大体积混凝土在固化过程释放的水化热会产生较大的温度变化和收缩作用。
In this paper, the problem of mass concrete steady thermal field was solved by using Monte Carlo method with irregular grid random walk.
利用一种求偏微分方程的新方法蒙特卡罗算法通过不规则网格随机游动来求解大体积混凝土稳定温度场。
This paper focuses on the construction technology program of mass concrete of Houjiagou Bridge cap in cold regions and the implementation.
文章重点介绍了寒冷地区侯家沟大桥承台大体积砼施工技术方案及实施工艺。
Therefore, it is important to strengthen the understanding of construction project mass concrete grouting construction technique and study.
因此，加强对建筑工程大体积混凝土浇筑施工技术方法的认识与研究就显得尤为重要了。
Mass concrete temperature control requirements are very strict and one of effective methods to ensure construction quality is water cooling.
大体积混凝土温度控制要求严格，通水冷却是保证其施工质量的有效方法之一。
The paper briefly narrates the reasons for mass concrete crack, prediction of crack, field control, material selection and curing of concrete.
简述大体积混凝土裂缝产生的原因，裂缝预测，现场控制，材料选择，混凝土的养护。
The text introduces construction technology scheme and construction technic of mass concrete main pillar base slab at the Songhua River Bridge.
重点介绍了松花江特大桥承台大体积混凝土施工技术方案及实施工艺。
In this paper, a hybrid element method is used to analyse the unsteady plane temperature field of mass concrete DAMS provided with cooling pipe.
本文应用杂交元方法对大体积混凝土坝中具有冷却水管的平面不稳定温度场进行了分析。
The application of inter borehole acoustic wave method to probing deep cracks in mass concrete can effectively solve the above mentioned problems.
而应用声波跨孔法进行大体积混凝土结构的深裂缝检测可有效地解决上述问题。
Steel arches rise and spring from mass concrete piers asymmetrically, in length, between the road decks to mark the mainland and the navigation channels.
钢拱在路面平台中间，从大块混凝土桥墩(长度上)不对称地跳出来并升起，突出了大陆和航道。
In the paper, dynamic analysis of temperature field in mass concrete has been worked out and mathematical model has been drawn up from the heat transfer.
从传热学角度对高性能大体积混凝土内温度场进行动态分析，并建立了符合实际的数学模型。
The problem of thermal stress and a need for temperature control in the mass concrete construction also occur in the roller compacted concrete dams(RCCD).
大体积混凝土的温度应力问题与温度控制要求在碾压混凝土坝中同样存在。
The section size of mass concrete is larger, the less likely to cause a load, but due to the temperature of deformation of mass concrete is extremely adverse.
大体积混凝土的截面尺寸较大，有荷载引起的可能性较小，但由于温度产生的变形对大体积混凝土却极为不利。
Based on the insufficiency of existing expansive admixture in compensating shrinkage of the mass concrete, a double expansive resources admixture is introduced.
本文分析了现有膨胀剂在补偿大体积混凝土收缩方面的不足，介绍了一种双膨胀源膨胀剂。
This paper firstly explained the mass concrete, and then analyzed the design principle of seamless construction scheme, and improved the technology in construction.
本文首先对大体积混凝土进行了解释，然后分析了整个无缝施工方案中的设计原理，并对建筑施工中的技术进行了改良。
This paper firstly explained the mass concrete, and then analyzed the design principle of seamless construction scheme, and improved the technology in construction.
本文首先对大体积混凝土进行了解释，然后分析了整个无缝施工方案中的设计原理，并对建筑施工中的技术进行了改良。
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